2048的变种游戏- Twenty one—玩到21你就超神了

21 is a colorful puzzle game, from 5 starts, it seems very easy, the most amazing is after 15, you challenge the limit is 21. Anyone know how to play this game, but you have to concentrate, an inattentive may be irretrievably lost.

You know how to master the skills? Every time the following will come out of a row of new blocks, two identical squares to form a new post-merger, it is a truly relaxing mood of the game.

In the subway, while you wait, you can come to play.

You can play it to 21?